| DOI: | 10.1002/2015GL063125
|
| 论文题名: | Rossby waves, extreme fronts, and wildfires in southeastern Australia |
| 作者: | Reeder M.J.; Spengler T.; Musgrave R.
|
| 刊名: | Geophysical Research Letters
|
| ISSN: | 0094-8873
|
| EISSN: | 1944-8604
|
| 出版年: | 2015
|
| 卷: | 42, 期:6 | | 起始页码: | 2015
|
| 结束页码: | 2023
|
| 语种: | 英语
|
| 英文关键词: | bushfire
; fire weather
; front
; Rossby wave
; wildfire
|
| Scopus关键词: | Fires
; Weather forecasting
; bushfire
; Fire weather
; front
; Rossby wave
; wildfire
; Mechanical waves
; anticyclone
; cold front
; overturn
; precipitation (climatology)
; Rossby wave
; synoptic meteorology
; wave propagation
; wildfire
; Australia
|
| 英文摘要: | The most catastrophic fires in recent history in southern Australia have been associated with extreme cold fronts. Here an extreme cold front is defined as one for which the maximum temperature at 2m is at least 17°C lower on the day following the front. An anticyclone, which precedes the cold front, directs very dry northerlies or northwesterlies from the interior of the continent across the region. The passage of the cold front is followed by strong southerlies or southwesterlies. European Centre for Medium-Range Weather Forecasts ERA-Interim Reanalyses show that this regional synoptic pattern common to all strong cold fronts, and hence severe fire conditions, is a consequence of propagating Rossby waves, which grow to large amplitude and eventually irreversibly overturn. The process of overturning produces the low-level anticyclone and dry conditions over southern Australia, while simultaneously producing an upper level trough and often precipitation in northeastern Australia. Key Points Catastrophic fires are associated with extreme cold fronts Extreme cold fronts are associated with propagating Rossby waves These Rossby waves appear to originate from South America ©2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84927726772&doi=10.1002%2f2015GL063125&partnerID=40&md5=169d9087645d1ff8784f3595a3af2b2b
|
| Citation statistics: |
|
| 资源类型: | 期刊论文
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/8489
|
| Appears in Collections: | 科学计划与规划
气候变化与战略
|
|
There are no files associated with this item.
|
|
作者单位: | School of Earth, Atmosphere and Environment, ARC Centre of Excellence for Climate System Science, Monash University, Clayton, VIC, Australia
|
| Recommended Citation: | |
Reeder M.J.,Spengler T.,Musgrave R.. Rossby waves, extreme fronts, and wildfires in southeastern Australia[J]. Geophysical Research Letters,2015-01-01,42(6).
|
|
|